Charlie Stross may have political opinions similar to those of Dale Carrico, and agree with Carrico's critique of transhumanism to some extent, but he doesn't make a fool of himself by pretending to consider transhumanist aspirations scientifically impossible. He knows better. See also my thoughts on some of Carrico/Stross points.

Carrico's "arguments" boil down to "You are a filthy Robot Cultist, so you are not qualified to have opinions on serious political issues." These are the same "arguments" often used by those homophobes who say "You are a filthy gay, so you are not qualified to have opinions on serious political issues," so they are quite surreal when they come from a gay rights activist like Carrico.